Next: Output files
Up: Input data file
Previous: The namelist input
This namelist describes the nucleus to be computed, it can be repeated
as many times as needed in the input file. Along with the neutron
and proton numbers, other quantities can be set, notably the parameters
of the Skyrme force in the particleparticle channel.
If a variable is not present in the list and has not been present
in the previous namelists nucleus, it acquires a default
value (see table 4). If a variable is not present
but was present in a previous namelist, it keeps its previous value.
The variables are
 neutron and proton: number of neutrons and protons
for the nucleus. If one of this number is negative then the program
will let vary the number of particles in order to reach the
corresponding drip line.
 j_max(2): maximum values of (first for neutrons,
second for protons). It is reasonable to use different values
for neutrons and protons in the case of very asymmetric or
semi magic nuclei.
 cut_off and cut_diffuseness: If the regularization
procedure is used, the densities are built by summing up contributions from the
quasiparticle states up to the maximum equivalent energy (47)
given by cut_off,
if not, the summation is made up to the cutoff equivalent energy
(47) given by
cut_off with a smooth Fermi profile of diffuseness
cut_diffuseness, see Sec. 2.7.
 r_cut: value of distance
beyond which the paring fields
are neglected when integrating the HFB equations, see Eq. (77).
 e_step: initial step in energy (in MeV) for the
search of the solution of the HFB equations.
 skt0p and skt3p: parameters of the force in
the particleparticle channel as defined in equation (45).
 read_pot: This string can be used to give a name
of a file where the initial potentials are read. The number
of mesh points can be different in the run and in the saved
potentials but the integration step must be the same.
 densities, meanfields, quasiparticle
and canonical_states: logical flags which can be set
if one wants to save the densities, mean fields and quasiparticle
and canonical states wave functions at the end of the run.
Table 4:
Variables from the namelist nucleus. The neutron
and proton numbers have no default values. If the energy
step is not present in the list it is calculated as a function
of the box radius. By default, the values of skt0p
and skt3p are fixed by the kind of pairing force
chosen in the namelist input.
Variable 
type 
Default value 
neutron 
integer 
 
proton 
integer 
 
j_max(2) 
integer 
(/21,21/) 
cut_off 
real 
60.0 
cut_diffuseness 
real 
1.0 
r_cut 
real 
30.0 
e_step 
real 
calculated 
skt0p 
real 
predefined 
skt3p 
real 
predefined 
read_pot 
character*40 
``'' 
densities 
logical 
F 
meanfields 
logical 
F 
quasiparticles 
logical 
F 
canonical_states 
logical 
F 

Next: Output files
Up: Input data file
Previous: The namelist input
Jacek Dobaczewski
20050123